Needle-actuating cam for knitting-machines



(No Model.)

H A. HOUSEMAN. NEEDLE AGTUATING 0AM FOR KNITTING MACHINES.

No. 521,860. "Patented June 26, 1894.

' lll rasees aaaaaaaaaaaa c4 U ITED STATES PATENT OFFICE.

HARRYA. HOUSEMAN, or PHILADELPlT-IIA, PENNSYLVANIA.

NEEDL E-ACTUATING CAlVl FOR KNITTING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 521,860, dated June 26,1894.

Application filed September 11 1893. S rial No, 485,261. (No model.)

To all whom it may concern.-

Be it known that I, HARRY A. HoUsEMAN, a citizen of the United States,residing at Philadelphia, county of Philadelphia, and State ofPennsylvania, have invented a new and useful Improvement inNeedle-Actuating Cams for Knitting-Machines, of which the following is afull, clear, and exact description, reference being had to'the'accompanying drawings, which form a part of this specification.

My invention relates particularly to the cam cylinder of a knittingmachine, and to the construction whereby when the cylinder isreciprocating the needles are switched out of the action of the knittingcam in one movement of the cylinder, and it consists in the arrangementand connection of the switch cam whereby it operates with certainty andis subjected to less wear andis less liable to become deranged than inthe ordinaryconstruction. v v

I will first describemy improvement and then particularly point out thesame.

In the drawingsFigurel is a perspective View of the cam cylinder. Fig. 2is a section on line 0ca3, Fig. 1, but with the addition of a needlecylinder in section. Fig. 3 is a diagrammatical view of knitting cams. 1

A is the frame of the cam cylinder, B the needle cylinder, 1) theneedles, and O O'the knitting cams.

D, D, are the switch cams, one for each knitting cam.

d is a pin secured to each switch cam which passes through slot 01' inthe cam cylinder,

and in which the pin d can have a vertical movement.

E is a pin with the spiral spring e, forced.

upon it by the screw e, and which passes vertically into said slot, theend resting on the pin d. This spring actuated pin E holds the pin d ofthe switch cam D in position, and

. the cam normally in the position shown in Fig. 3, so that, referringto the right hand the cam 0, allowing the needle to pass by. Whenthecylinder is moving to the left, the action upon the corresponding switchcams is reversed, and when straight or tubular Work is being done, onlyone of the knitting cams is in action, and the switch cam correspondingto the other knitting cam carries the needle out of action of theknitting cam. By this method of supporting the switch cams, no strain isdirectly brought upon the bearing of said cams, they having free playand the point of swing being upon the point where said cams rest uponthe knitting cams, and the tension of the spring is more easily keptconstant, and the adjustment does not readily become deranged.

Having now fully described my invention,

what I claim, and desire to protect by Letters Patent, is

1. The combination with the knitting cam of a knitting machine, of aswitch cam, a pin secured'to said cam, there being an orifice in the camcylinder in which said pin rests, and a spring actuated pin bearingagainst said pin.

2. The combination with the knitting cam of a knitting machine, of aswitch cam having one end resting against the knitting cam, a pinsecured to said cam, there being an orifice in the cam cylinder in whichsaid pin rests, and a spring actuated pin bearing against said. pin.

3. The combination with the knitting cam of a knitting machine, of aswitch cam, apin secured to said cam, there being a slot in the camcylinder, into which said pin passes, and

a vertical spring actuated pin passing down into said slot and restingupon said pin.

4. The combination with the knitting cam of a knitting machine, of aswitch cam having one end resting upon said knitting cam, a pin securedto said cam, there being a slot in the cam cylinder into which said pinpasses, and a vertical spring actuated pin passing down into said slotand resting upon said pin. In testimony of which inventionI havehereunto set my hand.

HARRY A. HOUSEMANV Witnesses:

GEo. W. REED,

FRA K S. Emma

